350.org is turning the page on the fossil fuel industry and building a clean, just future by connecting powerful grassroots climate movements around the world.

What's in a name? Ours, 350, is a number. And a very important one. It is a reference to 350 parts per million (ppm) – the concentration of carbon dioxide (CO2) in the atmosphere considered the safe …

Bill is Founder and Senior Advisor at 350.org and is the Schumann Distinguished Professor in Residence at Middlebury College in Vermont. He is a 2014 recipient of the Right Livelihood Prize, …

Ahead of the UN COP15 Summit in Copenhagen and 350.org’s first Global Day of Action, people in 181 countries mobilize to demand a binding climate treaty to stay below 350 parts per million (350 ppm) …

Dec 3, 2025 · Explore the latest news, press releases and media resources from 350.org, our campaigns and the movement for a world powered by just and accessible renewable energy.

Climate Action Rhode Island (350.org/ri), the grassroots environmental group representing over 4000 Rhode Islanders demanding action on the climate crisis, is pleased to announce...

Feb 7, 2025 · Help 350.org build a powerful climate movement. We believe in a safe climate and a better future — a just, prosperous, and equitable world built with the power of ordinary people.

Communities worldwide are resisting fossil fuel expansion and leading the way for solutions to climate change. Join 350.org to power up just, reliable and affordable renewable energy.

Nov 7, 2024 · This critical period will set the stage in limiting global heating levels to 1.5 degree Celsius. Follow this 350.org exclusive blog series as we evaluate these NDCs to see how serious country …

Jun 2, 2025 · This is a guest blog by Elaine Baker, member of the Community Energy Federation of Ireland and 350’s Our Own Power Network. Worldwide, communities are showing the way by …